Arched beam supporting structure outside pit

Abstract

The utility model provides an arch-shaped beam supporting structure outside a pit. The arch-shaped beam supporting structure outside the pit comprises an inverted-U-shaped frame body, side supporting devices, a middle supporting device and an arch-shaped device. The side supporting devices are arranged on the two sides of the interior of the inverted-U-shaped frame body, the multiple middle supporting devices are evenly arranged in the inverted-U-shaped frame body, and the middle supporting devices are arranged between the side supporting devices. And the plurality of arched devices are arranged between the side supporting devices and the middle supporting device or between the middle supporting device and the supporting device. The utility model has the beneficial effects that the arch-shaped device is arranged, so that the total support arrangement amount is reduced, and the construction cost is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the field of geotechnical engineering, in particular to an arched beam supporting structure outside a pit. Background Art

[0002] With the rapid development of urbanization and urban construction, the development and utilization of underground space resources have been greatly promoted. Three-dimensional underground space has been developed as a major natural resource. With the increase in space utilization, many super-high-rise buildings have emerged, making foundation pit projects develop in the direction of greater depth and scale. In addition, a large number of underground space excavations are located in areas with densely populated buildings. Excavation of foundation pits next to buildings or structures will inevitably affect the surrounding buildings or structures.

[0003] At present, for deep foundation pits with complex surrounding environment, the support form of supporting piles + internal support is often used, such as Figure 2 As shown, the density of the internal support arrangement has a great impact on earth excavation and underground structure construction. The denser the support arrangement, the greater the impact. Utility Model Content

[0004] In view of this, the utility model aims to propose an outside-pit arch beam support structure to solve at least one technical problem of the background technology. The present invention specially innovates a new type of arrangement form - an outside-pit arch tension beam, which is an arrangement form that utilizes the force characteristics of the arch structure outside the foundation pit to arrange the rods and thereby reduce the support density inside the foundation pit.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] The arched beam support structure outside the pit includes an inverted U-shaped frame, a side support device, an intermediate support device, and an arch device;

[0007] The side support devices are arranged on both sides of the inverted U-shaped frame, and a plurality of intermediate support devices are evenly arranged in the inverted U-shaped frame, and the intermediate support devices are arranged between the side support devices;

[0008] A plurality of arch devices are arranged between the side support device and the middle support device or between the middle support device and the support device.

[0009] Furthermore, the side support device includes two side support rod assemblies, and the two side support rod assemblies are symmetrically arranged on the inverted U-shaped frame.

[0010] Further, the side support rod assembly includes a first side rod, a second side rod, a third side rod, and a fourth side rod;

[0011] The first side rod, the second side rod, the third side rod and the fourth side rod are tiltedly arranged on the inverted U-shaped frame body.

[0012] Both ends of the first side bar, the second side bar, the third side bar and the fourth side bar of the upper side support bar assembly are connected to the inverted U-shaped frame;

[0013] One end of the first side rod, the second side rod, the third side rod and the fourth side rod of the side support rod assembly at the lower side is connected to the inverted U-shaped frame body, and the other end is arranged on the ground.

[0014] Furthermore, a plurality of first support rods are obliquely arranged between the first side rod and the second side rod, and the plurality of first support rods are connected end to end.

[0015] And / or, a plurality of second support rods are obliquely arranged between the third side rod and the fourth side rod, and the plurality of second support rods are connected end to end.

[0016] Furthermore, the intermediate support device includes an intermediate column assembly and two intermediate support assemblies.

[0017] The middle column assembly is vertically arranged on the inverted U-shaped frame body, and the two middle support assemblies are symmetrically arranged on the middle column assembly.

[0018] Furthermore, the middle column assembly includes a middle column and a third support rod. The two middle columns are vertically arranged on the inverted U-shaped frame, and a plurality of third support rods are evenly arranged between the two middle columns.

[0019] Further, the middle support assembly comprises a first middle rod and a second middle rod, and the first middle rod and the second middle rod are obliquely arranged on the middle column assembly;

[0020] A plurality of fourth support rods are obliquely arranged between the first middle rod and the second middle rod; the plurality of fourth support rods are connected end to end.

[0021] The first intermediate rod and the second intermediate rod of the upper intermediate support assembly are connected to the intermediate column assembly at one end and connected to the inverted U-shaped frame at the other end;

[0022] One end of the first intermediate rod and the second intermediate rod of the lower intermediate support assembly is connected to the intermediate column assembly, and the other end is set on the ground;

[0023] Furthermore, the arch device includes an arc rod and a fifth support rod, both ends of the arc rod are respectively arranged above the inverted U-shaped frame, and a plurality of fifth support rods are evenly arranged between the arc rod and the inverted U-shaped frame.

[0024] Furthermore, the angle formed by the arc-shaped rod and the inverted U-shaped frame is 35-45°.

[0025] Furthermore, the distance between the fifth support rods is 8-10 meters.

[0026] Furthermore, the horizontal width of the arc-shaped rod is 30-50 meters.

[0027] Furthermore, one end of the arc rod is connected to the side support device or the middle support device, and the other end is connected to the middle support device.

[0028] Compared with the prior art, the arched beam support structure outside the pit described in the utility model has the following advantages:

[0029] 1. This application reduces the total amount of overall support arrangement by setting up an arch device, thereby greatly reducing the project cost.

[0030] 2. This application can reduce the number of large-span support rods, save vertical support pile layout, and further save engineering costs;

[0031] 3. This application can significantly reduce the density of support arrangements in the pit, facilitate earth excavation and backfilling, reduce construction difficulty, and shorten construction period;

[0032] 4. This application can optimize the support layout, avoid the support covering the main structure that is in a hurry to be constructed above the ground, and effectively solve engineering problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0034] Figure 1 It is a schematic diagram of the arched beam support structure outside the pit according to an embodiment of the utility model;

[0035] Figure 2 It is a schematic diagram of the prior art of the utility model;

[0036] Figure 3 It is a schematic diagram of the arch device described in the embodiment of the utility model.

[0037] Description of reference numerals:

[0038] 1. First side rod; 2. Second side rod; 3. Third side rod; 4. Fourth side rod; 5. Inverted U-shaped frame; 6. First support rod; 7. Second support rod; 8. Middle column; 9. Third support rod; 10. First middle rod; 11. Second middle rod; 12. Fourth support rod; 13. Arc rod; 14. Fifth support rod. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0040] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0041] like Figure 1 As shown, the arched beam support structure outside the pit includes an inverted U-shaped frame 5, a side support device, an intermediate support device, and an arch device; the side support devices are arranged on both sides of the inside of the inverted U-shaped frame 5, and a number of intermediate support devices are evenly arranged in the inverted U-shaped frame 5, and the intermediate support devices are arranged between the side support devices; a number of arch devices are arranged between the side support devices and the intermediate support devices or between the intermediate support devices and the support devices.

[0042] The side support device includes two side support rod assemblies, and the two side support rod assemblies are symmetrically arranged on the inverted U-shaped frame 5. The side support rod assembly includes a first side rod 1, a second side rod 2, a third side rod 3, and a fourth side rod 4; the first side rod 1, the second side rod 2, the third side rod 3, and the fourth side rod 4 are obliquely arranged on the inverted U-shaped frame 5. Both ends of the first side rod 1, the second side rod 2, the third side rod 3, and the fourth side rod 4 of the upper side side support rod assembly are connected to the inverted U-shaped frame 5; one end of the first side rod 1, the second side rod 2, the third side rod 3, and the fourth side rod 4 of the lower side side support rod assembly is connected to the inverted U-shaped frame 5, and the other end is arranged on the ground.

[0043] A plurality of first support rods 6 are obliquely arranged between the first side rod 1 and the second side rod 2, and the plurality of first support rods 6 are connected end to end. A plurality of second support rods 7 are obliquely arranged between the third side rod 3 and the fourth side rod 4, and the plurality of second support rods 7 are connected end to end.

[0044] The intermediate support device includes an intermediate column 8 assembly and two intermediate support assemblies. The intermediate column 8 assembly is vertically arranged on the inverted U-shaped frame 5, and the two intermediate support assemblies are symmetrically arranged on the intermediate column 8 assembly. The intermediate column 8 assembly includes an intermediate column 8 and a third support rod 9. The two intermediate columns 8 are vertically arranged on the inverted U-shaped frame 5, and a plurality of third support rods 9 are evenly arranged between the two intermediate columns 8. The intermediate support assembly includes a first intermediate rod 10 and a second intermediate rod 11. The first intermediate rod 10 and the second intermediate rod 11 are obliquely arranged on the intermediate column 8 assembly;

[0045] A plurality of fourth support rods 12 are obliquely arranged between the first intermediate rod 10 and the second intermediate rod 11; the plurality of fourth support rods 12 are connected end to end, and the first intermediate rod 10 and the second intermediate rod 11 of the upper intermediate support assembly are connected to the intermediate column 8 assembly at one end, and the other end is connected to the inverted U-shaped frame 5; the first intermediate rod 10 and the second intermediate rod 11 of the lower intermediate support assembly are connected to the intermediate column 8 assembly at one end, and the other end is arranged on the ground;

[0046] The arch device includes an arc rod 13 and a fifth support rod 14. The two ends of the arc rod 13 are respectively arranged above the inverted U-shaped frame 5, and a plurality of fifth support rods 14 are evenly arranged between the arc rod 13 and the inverted U-shaped frame 5. The angle a formed by the arc rod 13 and the inverted U-shaped frame 5 is 35-45°. The distance d2 between the fifth support rods 14 is 8-10 meters. The horizontal width d1 of the arc rod 13 is 30-50 meters. One end of the arc rod 13 is connected to the side support device or the middle support device, and the other end is connected to the middle support device.

[0047] The present application adopts the arrangement form of truss angle support at the corner of the foundation pit, the arrangement form of truss bracing at the middle of the foundation pit, and the arrangement form of arch outside the pit within the span of 30-50m between the angle support or bracing or bracing and bracing, that is: an arch support rod is arranged within 30-50m along the pit edge outside the foundation pit, and the two ends of the arch rod are respectively connected to the rod in the pit. The tangent angle between the arch rod and the crown beam is generally taken as 35°-45°. A pull rod is set every 8-10m between the arch rod and the crown beam. When the arch is large, support piles can be arranged at large intervals under the arch rod to enhance its stability.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The arched beam support structure outside the pit is characterized by: It includes an inverted U-shaped frame, a side support device, an intermediate support device, and an arch device; The side support devices are arranged on both sides of the inverted U-shaped frame, and a plurality of intermediate support devices are evenly arranged in the inverted U-shaped frame, and the intermediate support devices are arranged between the side support devices; A plurality of arch devices are arranged between the side support device and the middle support device or between the middle support device and the support device.

2. The arched beam support structure outside the pit according to claim 1, characterized in that: The side support device comprises two side support rod assemblies, and the two side support rod assemblies are symmetrically arranged on the inverted U-shaped frame.

3. The arched beam support structure outside the pit according to claim 2, characterized in that: The side support rod assembly includes a first side rod, a second side rod, a third side rod, and a fourth side rod; The first side rod, the second side rod, the third side rod and the fourth side rod are tiltedly arranged on the inverted U-shaped frame body.

4. The arched beam support structure outside the pit according to claim 3, characterized in that: A plurality of first support rods are obliquely arranged between the first side rod and the second side rod, and the plurality of first support rods are connected end to end; And / or, a plurality of second support rods are obliquely arranged between the third side rod and the fourth side rod, and the plurality of second support rods are connected end to end.

5. The arched beam support structure outside the pit according to claim 1, characterized in that: The intermediate support device includes an intermediate column assembly and two intermediate support assemblies. The middle column assembly is vertically arranged on the inverted U-shaped frame body, and the two middle support assemblies are symmetrically arranged on the middle column assembly.

6. The arched beam support structure outside the pit according to claim 1, characterized in that: The intermediate support device includes an intermediate column assembly and two intermediate support assemblies. The middle column assembly is vertically arranged on the inverted U-shaped frame, and the two middle support assemblies are symmetrically arranged on the middle column assembly; The middle support assembly comprises a first middle rod and a second middle rod, and the first middle rod and the second middle rod are obliquely arranged on the middle column assembly; A plurality of fourth supporting rods are obliquely arranged between the first middle rod and the second middle rod; and the plurality of fourth supporting rods are connected end to end.

7. The arched beam support structure outside the pit according to claim 1, characterized in that: The arch device comprises an arc rod and a fifth supporting rod. Both ends of the arc rod are respectively arranged above the inverted U-shaped frame body. A plurality of fifth supporting rods are evenly arranged between the arc rod and the inverted U-shaped frame body.

8. The arched beam support structure outside the pit according to claim 1, characterized in that: The included angle formed by the arc rod and the inverted U-shaped frame is 35-45°.

9. The arched beam support structure outside the pit according to claim 1, characterized in that: The distance between the fifth support poles is 8-10 meters.

10. The arched beam support structure outside the pit according to claim 1, characterized in that: The horizontal width of the arc pole is 30-50 meters.

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